Vehicle-spring



' mmodellx J. CARROLL.

V VEHICLE SPRING.

No. 289.067. Patented Nov. 27, 1883.

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WITNESSES.

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NlTED STATES PATENT FFICE.

JOHX CARROLL, OF RUSHVILLE, INDIANA.

VEHICLE-SPRING.

SPECIFICATION forming part of Letters Patent No. 289,067, dated November27, 1883,

7 Application filed October a, 1883. (No model.)

To all whom it may concern:

Be it known that 1, JOHN CARROLL, of the town of Rushville, county ofBush, and State of Indiana, have invented certain new and usefulImprovements in Vehicle-Springs, of which the following is aspecification.

My said invention consists in providing an equalizing or supplementalspring for the seats of road-carts and buck-boards or buggies, wherebywhen more than a certain weight is placed upon the seat the main springis relieved of partof the strain, as will be hereinafter moreparticularly set forth.

Referring to the accompanying drawings, which are made a' part hereof,and on which similar letters of reference indicate similar parts, Figure1 is a side elevation of a roadcart embodying my invention, one wheelbeing removed; Fig; 2, a detail View of my invention and the parts towhich it is attached; Fig. 3, an under side plan of the same; Fig. 4, adetail sectional View looking to the right from the dotted line 2 z inFig. 2-; and Fig. 5, a side elevation of abuck-board, one forward wheelbeing removed, showing an alternate construction which is used in suchcases.

In said drawings, the portions marked A represent the wheels; A .theaxles; B,the thills O, the seat; 0 O, the inside pieces between whichthe seat is mounted; D, the spring usually used in this class ofroad-carts to relieve a the seat of sudden jolts, and E the equalizingor supplemental spring, which constitutes the main feature of myinvention.

The wheels A, axles A, and t-hills B are of an old and well-knownconstruction, and therefore need no special description.

The seat G is mounted on the rear ends of the two side pieces, C. It isalso provided with theusual body or basket, which is secured to the rearend of the side pieces at its rear end, and at the front end issupportedby means of the links a to the front end of said side bars, as will bepresently described.

The side bars, G, are of suitable strength to support the seat and itsloads, and are mounted on the thills by means of the pivots c, andpivot-bearings c. From the forward ends of these bars links a extenddown through apertures in the thills, and are connected at their lowerends by a cross-bar, C", from which the links a extend downward to thefront end of the body C and connect therewith.

The spring D is secured to the under side of the thill at one end behindthe link a. The other end extends forward and is attached to the end ofthe cross-bar C, as shown.

The spring E is acommon C-spring secured at one end to the under side ofthe thill in front of the link 0, and the other end extend ing back overthe cross-bar at about half-way between said crossbar and the thill.(See especially Fig. 2.)

The foregoing description applies to road carts. In the case ofbuck-boards or side-spring vehicles the plates to which the side piecesare pivoted are secured to the top of the side bars of the bottom, andthe links extend down through said side bars instead of through thethills, as has been described; and the equalizing-springs are coiledsprings instead of C= springs. They are located on the link 0 be tweenthe cross-bar ()and the side bar of the bottom of the buck-board, asshown in Fig. 5.

The operation of this equalizing spring is as follows: The spring D isintended to be of sufficient stiffness to support the weight of anordinary-sized man on the seat without subjecting the spring E to anystrain; but when two men are on the seat bot-h springs will be subjectto the strainer weight.

By the employment of this spring, as will be readily understood, I avoidthe necessity of making the main spring tothe seat of any more thansufficient stiffness to support the weight of one person, and yet have ameans of supporting the weight of two. This makes the vehicle much moreeasy to ride in, as the seat gives as readily under the weight of oneperson as of two when the spring employed is of the common heavyconstruction.

It will be readily seen that springsof various other constructions maybeused to accomplish the same purpose, and I do not therefore desire to beunderstood as limiting myself to the construction shown and described,but regard as my invention the employment of an equalizing orsupplemental spring of any construction for the purposes hereinbeforedescribed.

ICQ

Having thus fully described my said invention, WhatI claim as new, anddesire to secure by Letters Patent, is

1. In a road-cart or other vehicle, the seat of which is supported onthe rear end of pivoted bars, the frontends of which are connected tosprings which tend to draw down said ends and thus equalize the weightof the person on the seat, a second equalizingor supplemental springadapted to aid the first after it has been subjected to a certain amountof strain, substantially as described, and for the purposes specified.

2. I11 a roadcart or similar Vehicle, the combination of the seat 0,supported on the rear ends of the side pieces, C, said side pieces 26thday of September, A. D. 1883.

JOHN CARROLL.

I11 presence of- C. BRADFORD, CHAS. L. TIIURBER.

